Getting Started with a Trencher

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Whether you’ve been trenching for a while or you are just getting started in the industry, here’s a run down on what is important to consider when working with a trencher. At Digga we have a range of trenchers for machines from 500kg up to 8T, which are used for pipe laying, underground power & communications, road repairs and general construction. 

 To make sure your trencher is running smoothly and to avoid any damage to the crumber bar, you should consider the following steps, as also explained by Anthony in our video below

  1. Pre-set your desired trench depth by adjusting the foot of your trencher 
  2. Pick the spot you’d like to trench and line out on the ground, where you are going to trench. 
  3. Lift your booms up and place the foot about 200mm off the ground (this is the optimum, but you might have to adjust depending on makes and models of machines) 
  4. Make sure to have your boom horizontal to the ground 
  5. Start the chain turning
  6. Start engaging into the ground by rolling the trencher forward – Important: the front part of the trencher should be the one to start engaging first. This will get the head start crumber bar start engaging as well. 
  7. Move back between 1 to 1.5m while moving the trencher downwards. Important: don’t try and achieve depth straight away, because this will damage your headstart crumber bar, move the trencher back gradually to avoid damage.
  8. Once full depth is achieved ensure the foot is flat on the ground. This will set the spoil auger at the right height to clear the trencher more efficiently. It will also ensure your chosen depth is reached.
  9. While going back, you should maintain a constant pressure. Please note: if it starts to stall, decrease the speed by which you are moving backwards. Also make sure to consider the ground condition – in lighter grounds you will be able to trench more quickly whereas in harder grounds you really need to make the chain work through the ground slowly and steadily.
  10. Make sure to keep it nice and straight!  You can’t trench in curves, as this will apply to much sideload to the boom and damage your trencher.
  11. Before putting away your trencher for storage, make sure to give it a quick pressure wash to get rid of the access soil.
  12. Finally, check all trencher components to see, if nothing has come loose.
  13. Service your trencher regularly.



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